Press.



H. W. SHEPARD.-

PRESS. APPLICATION Hum NOV. 14,1908.

' Patented May 11,1909.

3 SHEETSSHEET 1.

3 SHEETS-SHEET 2.

\ Patented May 11,1909.

11. W. SHEPARD.

' attoznuao wit" use:

rm; NQRRI PETERS cm, WASHINGTON, u. c.

H. W. SHEPARD.

PRESS. APBLIGATION FILED NOV. 14, 1908.-

' 'Patented May 11,1909.

3 SHEETS- SHEET 3.

tion. Fig. 7 is a section on the line A-B of 1 marrnn snares rnirnrrrcanton HERBERT W. SHEPARD, OF NEW YORK, N. Y., ASSIGNOR, BY MESNEASSIGNMENTS, OF FIFTY- ONE ONE-HUNDREDTHS TO'JAOOB B. BAERMANN AND HENRYA. LLOYD, OF NEW YORK, N. Y., AND M. VAN V. LLOYD, OF CLEVELAND, OHIO.

PRESS;

Patented Ma 1 1, 1909.

Application filed Novernber 14, 1908. Serial No. 462,659.

and State of New York, have invented a new. and useful Press, of whichthe following is a specification.

This invention has reference to improvements in presses and is designedmore particularly for the expressing of fluid from corn mash or hops, orgrains in breweries, or pomace, in wineries, or liquids from wood pulpor cocoanut or seeds of various kinds, or other oil or liquid bearingand containing substances. 1

In accordance with the present inyention there is provided a pumpcapable of handling the liquid containing substances and constitutingthe driving unit for forcing such substances into the expressing end ofthe press so that the liquids are extracted and the dry materials aredischarged at the end of the press remote from the pump, the operationbeing continuous.

In accordance with the present invention the pump is designed moreparticularly for handling materials of the kinds stated without cloggingand to operate successfully with a minimum number of parts avoiding theuse of springs, or cams, or other such mechanical expedients tending tocomplicate the structure. The expressing end of the device is alsodesigned on simple lines and is so arranged as to be readily 0 ened forcleaning and at the same time the liquids are allowed toescape freelywithout danger of the solid matter following. Furthermore the inventioncontemplates a simple means forregulating the pressure applied to thematerial from which the liquid is to be expressed.

The invention will be best understood. from a consideration of thefollowing detail description taken in connection with the accompanyingdrawings forming a part of'this specification, in which drawings, Figure1 is a plan view of the press complete. Fig. 2 is a side elevation ofthe same. Fig. 3 is across section through the expressing end of thepress on a larger scale than shown in Figs. 1 and 2. Fig. 4 is'aperspective view of the innerscreen in part. Fig. 5 is a plan view withparts in section of the pump used in connection with the press, Fig. 6is an end elevation of the pump with the drive shaft in sec- Fig. 5.Fig. 8 is a perspective view of the pump vanes in relative position butremoved from the pump rotor shaft or carrier, and Fig. 9 is a detailperspective viewof one of the vanesof the pump.

Referring to the drawings, there is shown a l ump 1, the details ofwhich are shown in *igs. 5 to 9 both inclusive, and which will bereferred to later in this description. The pump is a rotary power drivenpump designed to handle materials of the character already mentionedwithout clogging and with great economy ofoperation.

Extending through the pum 1 is a shaft having journals in pedestas 3beyond which the, shaft extends and there carries gear wheels 4 one ateach end of the shaft.

Upon the base 5 of the press are erected other pedestals 6 carryingjournal bearings for another shaft '7 which latter has pinions 8 neareach end meshing with the gear wheels 4 and also carries gear wheels 9in mesh with pinions 10 on a drive shaft ll mounted in other pedestals12 erected on the bases. The shaft 11 is provided with a pulley 1:3 bymeans of which power may be applied to the shaft 11 from any source ofpower. The train of gearing so far described constitutes a reducing gearby means of which the pump may be driven at a comparatively slow speedfrom a high speed prime mover. It will be understood of course that adirect connected electric motor may be used in place of a pulley drivendevice such as shown in the drawings.

The pump 1 receives material through a pipe or conduit 14 and dischargesinto the expressing end of the press through a conduit 15. v

The expressing or liquid extracting end of the press is composed of acircular series of spaced staves 16, the arrangement of which is bestseen 111 Fig. 3. These staves are preferably metal staves securedtogether in spaced relation in any suitable manner such as is common inpresses of this character.

The series of staves 16 are encircled near their ends by split rings 17to which the series of staves are secured by bolts 18 or otherwise. Themeeting ends at one side ofeach split ring 17 are coupled together by ahinge joint'19 while at the other side the meeting ends are formed intoears 20 coupled together by a bolt 21 and the cylindrical series ofstaves are. so joined that on the removal of the bolt 21 the rings 17may b spread open about the hinge 19 and the staves will participate inthis movement in two halves so that the interior of the expressing endof the press may be opened up for inspection or cleaning, or repair.

The circular series of staves 16 extend between two pedestals 22 and 23.Extending between the pedestals 22 and 23 near one side thereof is a baror red 24 and near the other side between these two pedestals are twospaced rods or bars 25 and 26. These bars 25 and 26 are not secured tothe pedestals but at their ends engage against lugs 27 and these barsare held together by spaced pairs of bolts 28 and thereby clampedagainst the lugs 27.

Mounted hingedly upon the rod 24 are two semicircular clamp members29-30, there being a number of these clamp members along the bar 24 inaccordance with the length of the expressing end of the press and theinternal ressure which the press is designed to wit stand. The member 29of the clamp over-rides the circular series of staves 16 and the member30 under-rides the same and the ends of the members 29 and 30 remotefrom the hinge rod 24 are formed into lips 31 designed to be engaged bythe bars 25 and 26 and so held in clamped relation about the circularseries of staves 16, the said bars 25 and 26 being upheld and in turnsuporting the clamp members 29 and 30 by the ugs 27 formed on thepedestals 22 and 23.

On removing the bolts 28 the bars 25 and 26 may be removed fromengagement with the lips 31 and the clamp members 29 and 30 may then beopened out around the pivot rod 24 so that the circular series of staves16 may be removed bodily, or on the removal of the bolts 21 from thecorresponding ends of the split rings 17 the circular series of staves16 may be opened about the hinge 19 for inspection, or cleaning, orrepair as before stated.

Interior to the series of staves 17 is a cylindrical screen or sieve 32made up of two members 33 and 34 of sheet metal having throughperforations of diii erent sizes, the member 33 being interior to themember 34 and having the smaller size perforations. This is best shownin Fig. 4. The cylindrical screen 32 is made in two halves separatinglongitudinally and each member 33 and 34 of each half is formed alongone edge with a li' 35 spaced away from the corresponding edge of theother member so as to form a longitudinal socket or receptacle for thecorresponding edge of the other half, the edges thus inter-locking andpreventing the escape at this point of any solid matter while at thesame time permitting the ready separation of the two members of thecylindrical screen. The screen member 32 is unperforated or solid for afew inches at each end as indicated at 36 in Fig. 4 where one end onlyis shown. These unperl'orated ends may enter the pcdestals 22 and 23which pedestals, of course, have openings through them for the passageof material as is common in presses of this character.

Extending longitudinally through. the expressing portion of the pressinterior to and concentric with the circular series of slaves 16 is ashaft 37 which may enter the pedestal 2S and be held concentrictherewith by means of a series oi spider arms 33 and these spider arms33 may bear upon the unpertorated portion 36 of the screen 32 when suchunperi'orated. portion extends into the pedestal 23. The other end ofthe shaft 37 extends through and beyond the pedestal 22 and is mountedat the end in still another pedestal 39 through which the slial't 37 mayslide.

The opening through the pedestal 27 flares in a direction toward thepedestal 39 and is entered by a conical plug -10 on the shaft 37.Adjacent to the plug 40 the shall 37 is screw-threaded and receives anut --ll between which nut and the pedestal 2-39 the shalt 37 issurrounded by a helical spring -12, the tension of which may beregulated by the said nut 41. The spring 42 tends to force the plug 40into the conical opening through the pedestal 22 and material passingthrough the press engages the plug ll) and moves the same in a directionagainst the action of the spring 42 in the eli'ort ol' the. material toescape through the opening in the pedestal 22, such opening constitutingthe escape throat for the material from which the liquid has beenexpressed, the pressure upon the nntterial depending upon the resistanceof the spring 42, the said spring tending to force the plug into theescape throat of the press and c )rrespondingly throttle the same.

When the press is in operation material enters the pump through theconduit H- and the pump constantly and regularly forces the materialcoming through the conduit 14 into the interior oi the screen 32 throughthe corresponding unperiorated end 36. The material is prevented frompacking in the center of the press by the shalt 37 and is kept therebyin engagement with. the interior of the screen 32. The material isultimately forced to the other end of the press and then meeting theplug 40 is prevented from passing out of the press until the escapethreat is enlarged by the contraction ol' the spring 42 which will yieldwhen. sullicicnt pressure is applied and this pressure may be determinedby the adjustment of the nut 41 thus regulating the working tension ofthe spring 42.

The pressure necessary to overcome the spring 42 is transmitted throughthe mass of material in the interior of the circular series ticalinterior of the pump.

through the perforated screen .32 and fromv thence out through thespacesbetween the staves 1.6 and ultimately into a suitable receptaclewhich however is not shown. in the drawings. The dried massultimatelyescapes throughthethroat of the press about the plug 40 and may therebedeposited in a suitable receptacle or upon a conveyer to be carried toanother point of deposit. These features being common in presses of thischaracter and forming no part of the present invention have been omittedfrom the drawings.

The pump shown in Figs. 5 to 9 both inclusive is particularly adaptedfor use in connec tion with a press such as has been describedhereinbefore. This pump is particularly designed to feed materialscontaining liquid which it is desirable to express from said materials,the said pump performing its operations without clogging and equallywell whether the liquids predominate in the materials or whether thematerials be quite dry in appearance as for instance in the case ofseeds from which oil is to be expressed.

The body of the by means of suitable heads 43 carrying journalbearings44 for the shaft 2. Since the interior of the pump is subjected to backpressure commensurate with the pressure developed in the expressing endof the pum packingglands 45 are provided and are eld to the journals bysuitable heavy screws 46 so that the packing may be suitably compressedto be resistant to the internal pressure in the um P V\ ithin the shellof the pump 1 between the heads 43 the shaft 2 is enlarged into acylindrical hub 46 and the shaft and hub are disposed eecentrically tothe principal axes of the ellipticalshell of the pump, the hub 46 beinginset slightly into one wall of the chip tical interior of the shell ofthe pump as best shown in Fig. 7. The pump isprovided at one side withan inlet port 47 connected to the conduit 14 and this port merges intothe interior of the ump on the side thereof occupied by the hub 46 whilea relief off-set 48 of the port 47 leads into the crown of the ellip-The interior of the pumpis provided with an exit port 49v at the base ofthe elliptical interior of the shell at a point remote from the inletport 47.

area thus permitting a free inflow of the material into the pump bygravity or low forced pressure while theoutfiow from the-pump is pum 1is in general form that ofv an elliptical shel closed at the ends underthe pressure generated by the pump against the accumulated pressure inthe ex 1 pressing end of the ress.

- In the structure s own in the drawings the hub 46 is traversed by twolongitudinal slots 50 intersecting each other at the axis of the shaftat right angles one to the other. These slots receive the pump vanes 51,one of which is shown in Fig. 9. Each pump vane 51 is composed of ablade 52 of a thickness and length to fit snugly yet easily within thecorresponding slot 50 and these vanes and slots are coextensive inlength with the length of the shell of the pump 1, the heads 43 beingcountersunk sufliciently to receive the ends of the hub 46 beyond theends of the slots so that the ends of the vanes may engage the innerwalls of the heads 43 and thus prevent leakage at this point. The outeredges of the vanes may be slightly rounded to engage the inner walls ofthe pump shell. Each blade52 on the side remote from the edge designedto engage the inner walls of the pump shell is formed with two legs 53spaced one from the other, one leg being at the extreme end. of theblade and the other leg being spaced therefrom and also from thecorresponding other end of the blade.

The legs 53 are but half the thickness of the blade 52 so that when twoblades are introduced into a slot 50 from opposite sides thereof thelegs, will over-lap in close relation one to the other. Each leg 53 nearits junction with the blade 52 is flanked by a strengthening rib 54increasing in thickness from the thickness of the leg to that of theblade as it ap roaches the blade, and the body of each b ade 52 wherejoined by a leg 53 is recessed as shown at 55 for the reception of thefree end of the leg of the matching.

blade. In operation the blades are arranged in pairs in each slot 50 andeach blade is designed to move into and out of the slot, the ribs 54permitting a comparatively narrow blade with a support provided by saidribs entering well into the hub 46 even when the blade is projected toits full operative extent.

W henthe blades are introduced into the hub 46 in the intersecting slots50 the legs 53 of one blade extend between the legs of the other bladeand the space between the more central leg and the end of the bladeremote from the leg located at the other end of the blade. In thismanner the two sets of blades in the two intersectin slots 50 may moveinto and out of the hub along the slots without interference.

When the blades 51 are mounted. in the hub 46 and the structure ishoused within It will be noted that the inlet port 47 ap proaches inwidth thelength of the shell of. the pump 1 while the exit port 49 is ofless the casing of the pump and power is applied to the shaft 2, theends of the blades 51 will remain in contact with the inner walls of thecasing of the pump through substantially the entire active movement ofsaid blades while the free end of the legs 53 of one blade of a pairremain seated in the recesses 55 of the other blade, the two members ofa pair of blades having practically no relative movement one on theother.

By forming the blades of two interlocking members one arranged totraverse the other all cam, springs, and other mechanical expedients formaintaining the ends of the lades in engagement with the inner walls ofthe pump casing are obviated, while the blades have ample bearing in thehub 46 to withstand the side strain to which they are subjected inactive operation.

The exit and entrance ports of the pump are shown in Fig. 7 as on thesame side of the pump but at right angles one to the other but it willbe understood that these ports may be otherwise arranged as conditionsmay necessitate. And also the entrance and exit ports may be of the samesize if desired.

What is claimed is 1. In a press, an elongated. cylindrical memberhaving its walls provided with means for the escape of liquid, means forsupplying ma terial under operative pressure to the feed end of theexpressing chamber, a longitudinally movable smooth shaft extendingthrough the longitudinal axis of the expressing chamber and forming thelatter into an annular chamber unobstructed throughout its length, and athrottling means for the discharge end of the chamber carried by andmovable with the shaft.

2. In a press, an elongated cylindrical member having its walls providedwith means for escape of liquid, means for supplying material underoperative pressure to the feed end of the expressing chamber, alongitudinally movable smooth shaft extending through the longitudinalaxis of the expressing chamber and forming the latter into an annularchamber unobstructed throughout its length, and a throttling means forthe discharge end of the chamber comprising a conical block carried bythe shaft and movable therewith and entering the discharge end of thesaid chamber.

3. In a press, an elongated. cylindrical member having its wallsprovided with means for the escape of liquid, means for supplyingmaterial under operative pressure to the feed end of the expressingchamber, a longitudinally movable smooth shaft extending through thelongitudinal axis of the expressing chamber and forming the latter intoan annular chamber unobstructed throughout its length, and a blockcarried by and movable with the shaft and adjustable longitudinallythereon and entering the discharge end of the expressing chamber, and aspring surrounding the shaft and engaging the block and resistant to thelongitudinal movement of the shaft in a direction to carry the blockaway from the expressing chamber.

4. In a press, an elongated cylindrical member having its walls providedwith means for the escape of liquid, means for supplying material underpressure to the feed end. of the expressing chamber and a smooth shaftextending through the expressing chamber axially and forming the latterinto an annular chamber unobstructed throughout.

5. In a press, an elongated expressing member having its walls formed ofspaced staves or slats in cylindrical series, a perforated screen orsieve lining the interior of said series of staves or slats and havingthe ends unperforated, a central longitudinal shaft in said expressingchamber and having one end supported by the corresponding unperforatedend of the screen, a throttling plug on the shaft near the other endthereof in operative relation to the corresponding end of the expressingchamber, and means for feeding the material to be treated under pressureat the end of the expressing chamber remote from the throttling plug.

6. In a press, an elongatedexpressing member having its walls formed ofspaced staves or slats in cylindrical series, a perforated screen orsieve lining the interior of said series of staves or slats and havingthe ends unperforated, a central longitudinal shaft in said expressingchamber and having one end supported by the corresponding unperforatedend of the screen, a throttling plug on the shaft near the other endthereof in operative relation to the corresponding end of the expressingchamber, means for feeding the material to be treated under pressure atthe end of the expressing chamber remote from the throttling plug, andyielding means acting on the shaft in opposition to the feeding pressureon the material.

7. In a press, an elongated expressing member having its walls formed ofspaced staves or slats in cylindricalseries, a perforated screen orsieve lining the interior of said series of staves or slats and havingthe ends unperforated, a central longitudinal shaft in said expressingchamber and havii'ig one end supported by the corresponding unperforated end of the screen, a throttling plug on the shaft near theother end thereof and in operative relation to the corresponding end ofthe expressing chamber, means for feeding the material to be treatedunder pressure at the end of the expressing chamber remote from thethrottling plug, and adjustable yielding means acting on the shaft inopposition to the feeding pressure on the material.

8. In a press, an elongated expressing member having its walls formed ofspaced staves or slats in cylindrical series, a perforated screen orsieve lining the interior of said series of staves or slats and havingthe ends unperforated, a central longitudinal shaft in said expressingchamber and having one end supported by the corresponding unperforatedend of the screen, a throttling plug on the shaft near the other endthereof in operative relation to the corresponding end of the expressingchamber, means for feeding the material to be treated under pressure atthe end of the expressing chamber remote from the throttling plug,aspring on said shaft tending to force theplug toward the expressingchamber, and means for adjusting the tension of said spring.

9. In a press, a pump for supplying material to the expressing chamber,said pump having a rotary member with intersecting slots, and vanesseated in said slots and also intersecting and of constant length, eachvane comprising two vane members each their point of junction with thevane mem-' her.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature in the presence of two witnesses.

HERBERT W. SHEPARD.

Witnesses:

J. Ross CoLHoUN, ADAH M. RosE.

